Superkey
id:
superkey-258-13074166
title:
Superkey
text:
In the relational data model a superkey is any set of attributes that uniquely identifies each tuple of a relation. Because superkey values are unique, tuples with the same superkey value must also have the same non-key attribute values. That is, non-key attributes are functionally dependent on the superkey. The set of all attributes is always a superkey. Tuples in a relation are by definition unique, with duplicates removed after each operation, so the set of all attributes is always uniquely v
brand slug:
wiki
category slug:
encyclopedia
description:
Set of attributes that uniquely identifies each tuple of a relation
original url:
https://en.wikipedia.org/wiki/Superkey
date created:
date modified:
2024-03-23T06:18:33Z
main entity:
{"identifier":"Q2068684","url":"https://www.wikidata.org/entity/Q2068684"}
image:
fields total:
13
integrity:
14